| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not smoke tobacco in a pipe during the past 30 days (one month) | 4772 |
98.4%
|
| 2 | Less than once a week | 43 |
0.9%
|
| 3 | At least once a week but not every day | 17 |
0.4%
|
| 4 | Every day | 20 |
0.4%
|
| Sysmiss | 178 |